Generated: December 14, 2017
DrugPatentWatch Database Preview
Details for Patent: 6,649,180
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Which drugs does patent 6,649,180 protect, and when does it expire?
Summary for Patent: 6,649,180
|Title:|| Hard capsule formed of cellulose ether film with a specific content of methoxyl and hydroxypropoxyl groups|
|Abstract:||A cellulose ether film is formed of a composition comprising a cellulose ether as a base in which some of the hydrogen atoms of cellulosic hydroxyl groups are replaced by alkyl groups and/or hydroxyalkyl groups, a gelling agent, and a gelling aid. The total content of alkoxyl and hydroxyalkoxyl groups in the cellulose ether is limited to 23-37.6% by weight, which is effective for preventing the gelling aid from precipitating out and maintaining a favorable outer appearance during long-term storage.|
|Inventor(s):|| Matsuura; Seinosuke (Kyoto, JP), Tanjoh; Masaru (Sakurai, JP) |
|Assignee:|| Shionogi Qualicaps Co., Ltd. (Yamatokoriyama, JP) |
Patent Claim Types:|
see list of patent claims
|Composition; Compound; Dosage form; |
Foreign Priority and PCT Information for Patent: 6,649,180
|Foriegn Application Priority Data|
||Foreign Patent Number
||Foreign Patent Date
|Japan||11-106689||Apr 14, 1999|
International Patent Family for Patent: 6,649,180
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